Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

BI-Level Mode

During the bi-level mode, air is directed through the A/C and heater outlets. This mode is used as a transition between the heater mode and the A/C mode. The A/C clutch engages when the outside temperature is above 6°C (42°F) in order to help dehumidify the air.